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Document And Entity Information (USD $)
12 Months Ended
Nov. 30, 2012
May 31, 2012
Dec. 30, 2012
Common Stock [Member]
May 31, 2012
Common Stock [Member]
Dec. 30, 2012
Common Stock Non-Voting [Member]
May 31, 2012
Common Stock Non-Voting [Member]
Entity Registrant Name MCCORMICK & CO INC          
Trading Symbol mkc          
Entity Central Index Key 0000063754          
Current Fiscal Year End Date --11-30          
Entity Filer Category Large Accelerated Filer          
Document Type 10-K          
Document Period End Date Nov. 30, 2012          
Document Fiscal Year Focus 2012          
Document Fiscal Period Focus FY          
Amendment Flag false          
Entity Common Stock, Shares Outstanding     12,446,261   120,231,834  
Entity Public Float   $ 7,194,126,618   $ 430,362,378   $ 6,763,764,240
Entity Well-known Seasoned Issuer Yes          
Entity Voluntary Filers No          
Entity Current Reporting Status Yes